Re: Confirming source-routed multicast is dead on the public Internet

2018-08-03 Thread Mark Tinka
On 1/Aug/18 19:43, Tarko Tikan wrote: >   > > We are an IPTV provider in europe and we definetly see share of linear > TV (that we are delivering via intra-AS multicast today) decreasing YOY. > > OTT plays a big part but even more customers use our own on-demand > services including network

Re: Confirming source-routed multicast is dead on the public Internet

2018-08-03 Thread Mark Tinka
On 1/Aug/18 00:15, Job Snijders wrote: > However, as you noted; multicast within a single administrative domain > (such as an access network distributing linear TV), or confined to > purpose-built L3VPNs very much is a thing. On the public Internet multicast > seems dead. I'd concur. Mark.

RE: Confirming source-routed multicast is dead on the public Internet

2018-08-02 Thread Jakob Heitz (jheitz) via NANOG
-routed multicast is dead on the public Internet On Fri, 3 Aug 2018 at 00:42, Saku Ytti wrote: > Cute :). Well 8*bitrates, but nice optimisation to make stream count > finite. Of course at cost of quality, as receiver needs up-speed of 8x > at start. Interesting side-effect, quality

RE: Confirming source-routed multicast is dead on the public Internet

2018-08-02 Thread Jakob Heitz (jheitz) via NANOG
- From: Saku Ytti Sent: Thursday, August 2, 2018 2:42 PM To: Jakob Heitz (jheitz) Cc: nanog@nanog.org Subject: Re: Confirming source-routed multicast is dead on the public Internet Hey, On Fri, 3 Aug 2018 at 00:36, Jakob Heitz (jheitz) via NANOG wrote: > Hey, there's a better way. >

Re: Confirming source-routed multicast is dead on the public Internet

2018-08-02 Thread Saku Ytti
On Fri, 3 Aug 2018 at 00:42, Saku Ytti wrote: > Cute :). Well 8*bitrates, but nice optimisation to make stream count > finite. Of course at cost of quality, as receiver needs up-speed of 8x > at start. Interesting side-effect, quality increases as movie > progresses :) I may have worded

Re: Confirming source-routed multicast is dead on the public Internet

2018-08-02 Thread Saku Ytti
Hey, On Fri, 3 Aug 2018 at 00:36, Jakob Heitz (jheitz) via NANOG wrote: > Hey, there's a better way. > Split the movie into segments: > Segment 1: Minute 1. > Segment 2: Minute 2. > Segment 3: Minutes 3,4. > Segment 4: Minutes 5-8. > Segment 5: Minutes 9-16. > etc. > Then send each segment in a

Re: Confirming source-routed multicast is dead on the public Internet

2018-08-02 Thread Jakob Heitz (jheitz) via NANOG
Hey, there's a better way. Split the movie into segments: Segment 1: Minute 1. Segment 2: Minute 2. Segment 3: Minutes 3,4. Segment 4: Minutes 5-8. Segment 5: Minutes 9-16. etc. Then send each segment in a loop. Each receiver receives every loop simultaneously. Each segment may start receiving

Re: Confirming source-routed multicast is dead on the public Internet

2018-08-02 Thread Sean Donelan
On Thu, 2 Aug 2018, John Levine wrote: In article you write: Multicast is being used in various private IP networks. It seems to work very well for satellite content distribution because multicast doesn't require ack's. Enterprise networks also use multicast. I would think it'd work fine on

Re: Confirming source-routed multicast is dead on the public Internet

2018-08-02 Thread John Levine
In article you write: >Multicast is being used in various private IP networks. It seems to work >very well for satellite content distribution because multicast doesn't >require ack's. Enterprise networks also use multicast. I would think it'd work fine on private networks, but since there's

Re: Confirming source-routed multicast is dead on the public Internet

2018-08-02 Thread Sean Donelan
Thanks to everyone that helped. Off-list I heard from network engineers at several global Internet providers. They all confirmed that multicast is no longer supported on their public Internet backbones, no matter what their sales people might say. If someone opened a multicast trouble ticket,

Re: Confirming source-routed multicast is dead on the public Internet

2018-08-01 Thread Saku Ytti
On Wed, 1 Aug 2018 at 20:47, Saku Ytti wrote: > I'm sure both of your use cases are used extensively in internal > network. I've worked for company who distributed broadcast TV on their > MPLS IP backbone, two-plane network, red and blue, one copy for each > tv channel on both planes and far-end

Re: Confirming source-routed multicast is dead on the public Internet

2018-08-01 Thread Saku Ytti
Hey Miles and Michael, It is entirely fair to debate what the use-case would be, the underlaying technical problem remains the same, if it becomes useful (globally) we don't have the hardware to cater for it. I'm sure both of your use cases are used extensively in internal network. I've worked

Re: Confirming source-routed multicast is dead on the public Internet

2018-08-01 Thread Tarko Tikan
hey, What if... Bear with me for a moment here, we don't try to force VoD onto a multicast setup? Multicast is used extensively by all major ISPs(if they have the rights) to deliver IPTV. We are an IPTV provider in europe and we definetly see share of linear TV (that we are delivering via

Re: Confirming source-routed multicast is dead on the public Internet

2018-08-01 Thread Miles Fidelman
On 8/1/18 12:24 PM, Saku Ytti wrote: Hey Mankamana, other than billing problem, is there any other reasons why multicast would not be viable for public internet ? Imagine someone like youtube or netflix would like to use multicast, instead of caches. They'd need to start new multicast

Re: Confirming source-routed multicast is dead on the public Internet

2018-08-01 Thread Michael Crapse
What if... Bear with me for a moment here, we don't try to force VoD onto a multicast setup? Multicast is used extensively by all major ISPs(if they have the rights) to deliver IPTV. One issue you brought up is people unwillin to wait 1 or 5 mins for a show, well before the days of youtube people

Re: Confirming source-routed multicast is dead on the public Internet

2018-08-01 Thread Hunter Fuller
On Wed, Aug 1, 2018 at 11:27 Sean Donelan wrote: > On Wed, 1 Aug 2018, Aaron Gould wrote: > > As you all have said, to confirm, I use ssm Mcast to distribute TV from > > satellite down links in the headend, out to a few different remote head > > ends. From there it's converted back to RF video

Re: Confirming source-routed multicast is dead on the public Internet

2018-08-01 Thread Sean Donelan
On Wed, 1 Aug 2018, Aaron Gould wrote: As you all have said, to confirm, I use ssm Mcast to distribute TV from satellite down links in the headend, out to a few different remote head ends. From there it's converted back to RF video and sent to subscribers via cable or hfc plant I'm aware

Re: Confirming source-routed multicast is dead on the public Internet

2018-08-01 Thread Saku Ytti
Hey Mankamana, > other than billing problem, is there any other reasons why multicast would > not be viable for public internet ? Imagine someone like youtube or netflix would like to use multicast, instead of caches. They'd need to start new multicast stream for every content with small delay

Re: Confirming source-routed multicast is dead on the public Internet

2018-08-01 Thread Justin M. Streiner
On Tue, 31 Jul 2018, John Kristoff wrote: Second best might be the Internet2 community where a number of institutions that have always had it might still have it turned on. Though there has been only one post in all of 2018 on their list if that tells you anything. At my previous job (large

Re: Confirming source-routed multicast is dead on the public Internet

2018-08-01 Thread John Kristoff
On Wed, 1 Aug 2018 15:45:44 + Adam Davenport wrote: > I can confirm that GTT does indeed filter IP sourced from 224.0.0.0/4 at its > edge. Do you mean sent to 224/4 or literally anything with a source address of 224/4? For those that are or are considering filtering, you might also want

Re: Confirming source-routed multicast is dead on the public Internet

2018-08-01 Thread Adam Davenport
I can confirm that GTT does indeed filter IP sourced from 224.0.0.0/4 at its edge. On 7/31/2018 6:44 PM, Patrick W. Gilmore wrote: It is hard to prove a negative. So let’s prove a positive. One of the largest (2nd largest?) transit networks on the planet just affirmatively stated they filter

Re: Confirming source-routed multicast is dead on the public Internet

2018-08-01 Thread John Kristoff
On Wed, 1 Aug 2018 02:43:10 + "Mankamana Mishra (mankamis) via NANOG" wrote: > other than billing problem, is there any other reasons why multicast > would not be viable for public internet ? Two other significant contributing factors stem from complexity and security issues. Here are

Re: Confirming source-routed multicast is dead on the public Internet

2018-08-01 Thread Dale W. Carder
Thus spake Mankamana Mishra (mankamis) via NANOG (nanog@nanog.org) on Wed, Aug 01, 2018 at 02:43:10AM +: > other than billing problem, is there any other reasons why multicast would > not be viable for public internet ? Hi Mankamana, You can find a reasonable overview here with respect

Re: Confirming source-routed multicast is dead on the public Internet

2018-08-01 Thread Mankamana Mishra (mankamis) via NANOG
other than billing problem, is there any other reasons why multicast would not be viable for public internet ? Mankamana > On Jul 31, 2018, at 2:36 PM, Bill Woodcock wrote: > > > >> On Jul 31, 2018, at 2:28 PM, Sean Donelan wrote: >> >> Its tough to prove a negative. I'm extremely

Re: Confirming source-routed multicast is dead on the public Internet

2018-08-01 Thread Steve Meuse
Can your hfc customers do an igmp join? No? Then it's probably not considered "public". -Steve On Wed, Aug 1, 2018 at 5:21 AM Aaron Gould wrote: > As you all have said, to confirm, I use ssm Mcast to distribute TV from > satellite down links in the headend, out to a few different remote head

Re: Confirming source-routed multicast is dead on the public Internet

2018-08-01 Thread Aaron Gould
As you all have said, to confirm, I use ssm Mcast to distribute TV from satellite down links in the headend, out to a few different remote head ends. From there it's converted back to RF video and sent to subscribers via cable or hfc plant Aaron > On Jul 31, 2018, at 5:15 PM, Job Snijders

Re: Confirming source-routed multicast is dead on the public Internet

2018-07-31 Thread Bill Woodcock
> On Jul 31, 2018, at 2:28 PM, Sean Donelan wrote: > > Its tough to prove a negative. I'm extremely confident the answer is yes, > public internet multicast is not viable. From a technical perspective, yeah, that’s right, but as you say, tough to prove a negative. If you want to give them

Re: Confirming source-routed multicast is dead on the public Internet

2018-07-31 Thread Patrick W. Gilmore
It is hard to prove a negative. So let’s prove a positive. One of the largest (2nd largest?) transit networks on the planet just affirmatively stated they filter at their border. It is now possible to state that multicast is not ubiquitous on the Internet. If any other large transit network

Re: Confirming source-routed multicast is dead on the public Internet

2018-07-31 Thread John Kristoff
On Tue, 31 Jul 2018 21:28:31 + Sean Donelan wrote: > I did all the google searches, check all the usual CAIDA and ISP > sites. IP Multicast is used on private enterprise networks, and some > ISPs use it for some closed services. More anecdotal evidence. Probably the best place to know what

Re: Confirming source-routed multicast is dead on the public Internet

2018-07-31 Thread Job Snijders
On Tue, 31 Jul 2018 at 23:29, Sean Donelan wrote: > Its tought to prove a negative. I'm extremely confident the answer is yes, > public internet multicast is not viable. I did all the google searches, > check all the usual CAIDA and ISP sites. IP Multicast is used on private > enterprise

Re: Confirming source-routed multicast is dead on the public Internet

2018-07-31 Thread Sean Donelan
head-thunk Source-Specific Multicast Never post while extremely frustrated.

Re: Confirming source-routed multicast is dead on the public Internet

2018-07-31 Thread Bill Woodcock
> On Jul 31, 2018, at 2:28 PM, Sean Donelan wrote: > > Its tough to prove a negative. I'm extremely confident the answer is yes, > public internet multicast is not viable. From a technical perspective, yeah, that’s right, but as you say, tough to prove a negative. If you want to give them a

Re: Confirming source-routed multicast is dead on the public Internet

2018-07-31 Thread William Herrin
On Tue, Jul 31, 2018 at 5:28 PM, Sean Donelan wrote: > Its tought to prove a negative. I'm extremely confident the answer is yes, > public internet multicast is not viable. I did all the google searches, > check all the usual CAIDA and ISP sites. IP Multicast is used on private > enterprise